’A Day in the Light’ Videos Highlight How Scientists Use Light in Experiments

In recognition of the International Day of Light ( @IDL2019 ) on May 16, the Department of Energy’s Lawrence Berkeley National Laboratory ( Berkeley Lab ) is highlighting how scientists use light in laboratory experiments.

From nanolasers and X-ray beams to artificial photosynthesis and optical electronics, Berkeley Lab researchers tap into light’s many properties to drive a range of innovative R&D.

In the three videos displayed below, you will learn how light drives the science of Berkeley Lab’s Advanced Light Source (ALS), a synchrotron that produces many forms of light beams. These light beams are customized to perform a variety of experimental techniques for dozens of simultaneous experiments conducted by researchers from across the nation and around the world.

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The following are Berkeley Lab’s #adayinthelight videos:

Angelic Lucero , Accelerator and Floor Operator at the ALS, explains the process of turning on the light that drives experiments at the ALS. (Credit: Marilyn Chung/Berkeley Lab)

Ziheng Yao , ALS Doctoral Fellow in Residence and a Ph.D. student at Stony Brook University in New York, shares how he uses infrared light at the ALS to study a range of samples, including battery and biological materials, meteors, and more. (Credit: Marilyn Chung/Berkeley Lab)

Shambhavi Pratap , ALS Doctoral Fellow in Residence and a Ph.D. student at the Technical University of Munich, discusses how she studies thin-film solar energy materials using X-rays at the ALS. (Credit: Marilyn Chung/Berkeley Lab)

The Advanced Light Source is a DOE Office of Science User Facility. The International Day of Light is recognized by the United Nations Educational, Scientific and Cultural Organization ( UNESCO ).

Join the celebration of light and share your own light-driven science:

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